Maybe try 10 psi next time, that's usually the sweet spot.

That length trick never works, it just waters down the same missing data.

And 50,000 with clipped heads is impressive, a lot of guys say those are finicky but I've had the same luck with them in my Hitachi. I think the key is just not overcleaning it, like you said, a quick brake cleaner spray once in a while is all they really need.

Man that transmission shudder issue is no joke, I had a buddy who bought a 2019 Focus and it felt like driving over a washboard every time he hit 20 mph. He took it to three different shops before anyone even admitted it was a known problem. Crazy that you had to just start stockpiling parts for those things, but honestly I think it just shows how bad Ford dropped the ball on that whole generation.

Nah, I gotta push back on that "don't open the door" rule. If your cake is deflating because you cracked the oven, you had bigger problems with your temp or your recipe. Sometimes you gotta check and rotate the pan halfway through, or the edges burn while the middle stays raw. Opening the door a couple times isn't gonna wreck a properly mixed cake, it's a myth that just stresses people out.